Free Shipping Offers are for Standard Ground Delivery service and are only valid for shipping addresses within the 48 Contiguous United States. Truck freight and oversize charges still apply unless otherwise notes and can only be shipped to the lower 48 States.Same Day Shipping (on most parts) if you order by 5PM EST on a business day. We ship via UPS Ground and/or USPS to all locations in the Continental 48 States.

AmericanMuscle also offers Free Freight Handling to locations with loading docks in the Continental 48 States. Freight shipments going to a residential address will require a $75 residential handling fee.

Product Resources

Review & Installation Video

Review & Install Video

The SR Performance adjustable rear sway bar is available for any 2015 or newer Mustang owner who might be looking to pick up a noticeable change for their suspension in order to improve handling around corners. Especially, while being able to fine-tune the stiffness or looseness using the adjustable arms. This is a very durable construction at a very affordable price, at just south of the $200 mark. Now, the installation, very straightforward stuff, will be a direct bolt-on swap from your factory sway bar. I give it a one out of three wrenches on our difficulty meter, but we'll talk more about that later on. Now, if you're not too familiar with what exactly a sway bar is or does, let me break it down for you in a nutshell. So this will help with side-to-side movement of your Mustang, but especially come into play around tight corners. It's main function is to reduce body roll, which is why you might also hear it referred to as an "anti-roll bar." It'll also help maintain stability, rotating throughout the turn. The factory sway bar does stay pretty neutral. So if you pick up a larger rear option, such as this one, it'll help to promote over-steer, basically the rear end rotating through the turn. Whereas, the other hand, or the front sway bar, if you picked up a larger option, it'll help to promote under-steer, which is going to cause the car to kind of just plow through the turn. It obviously comes down to personal preference. But most people want to find a happy medium or a perfect balance between the two. So it's usually a good idea to pair up a front sway bar with a rear, if you go with aftermarket options. Keeping a flatter ride is going to happen no matter which one you pick. So this is even great for the guys doing a lot of daily driving, because it will make a noticeable difference, even with a quick lane change. Since this is adjustable, it will allow you to fine-tune exactly how you make it feel on your car. So with the three holes on each end of the bar you see on the arms here, it'll allow you to adjust between the stiffest position, the loosest, and then obviously a more neutral feel. Neutral is still going to make a difference over stock. Remember, the bigger the bar, the stiffer the suspension is going to be. This is a more budget-friendly option, so one of the more premiums like BMR will make an even bigger difference, but this will still make the difference nonetheless. Speaking of which, this is a 25-millimeter diameter, solid cold-formed, high-strength, aircraft-grade steel, very durable stuff, which is exactly what you want, because it will be under so much pressure on your suspension. It's completed with a black powder-coated finish, which gives a more stealthy appearance, but more importantly, it gives it a rust and corrosion resistance. It also includes what you don't see on the table with me today, a set of polyurethane bushings, which are going to be more rigid than the factory rubber options, which will just make sure even more that it stays in place and prevents as much movement as possible. Just about $200 gets you this sway bar here, which in my opinion is a very affordable price tag, since it is a very worthwhile part for your suspension. It makes a huge difference, even on the street, and you will immediately feel that difference. With that said, if you're not really interested in the adjustable option, maybe you just want a quick replacement and want to save a few bucks, the nonadjustable option of exactly this is available. But I do recommend adjustable for the guys looking to more personalize the experience, and kind of go through the stiffer and looser options for different ways of driving. Now, if you've never tackled a sway bar install job before, I want to point out, very direct bolt-on install. Not much really involved in the process. Expect one out of three wrenches on our difficulty meter here. You can have it done in probably about an hour at the most. I would say a ratchet and socket set will do the trick, as well as a set of jack and jack stands, or a lift if you have access to one. As you can see on our 2015 GT here, our guys in the shop started off by getting the Mustang in the air, and removing the 10-millimeter bolts holding the brake line bracket to the sway bar end link bracket. Next, the bolts holding the sway bar to the sway bar end link come off, and then the bolts holding the bracket to the frame. Install the poly bushings over the ends of the bar, and then of course the brackets over the bushings. From here, install the SR Performance bar into the factory locations and use the factory bolts. From here, you can actually make the adjustments. Remember, the hole closest to the rear of the car will soften the feel. Closest to the front of the car will tighten the feel. The middle is neutral. The middle is where I'd recommend starting off, again, just so you can obviously gauge exactly how the feel is, and then make your decision from there on how you want to set it. That just about does it for me. So if you're the owner of a 2015 or newer Mustang GT, you might want to check out the SR Performance adjustable rear sway bar, available right here at americanmuscle.com.

3-Way Adjustable. SR Performance designed their Rear Sway Bar with three (3) adjustment positions, which allows you to fine tune the handling balance of your S550 Mustang to suite your specific driving needs from mild to wild.

Superior Construction. SR Performance manufactures their Rear Sway Bar in the USA from 63/64" (25mm) diameter solid cold-formed, high-strength aircraft-grade steel for superior strength. The Bar is then completed in a durable black powder coated finish for impressive good looks and long lasting corrosion resistance.

Application. This SR Performance 3-Way Adjustable Rear Sway Bar is designed to fit all 2015 to 2019 Mustangs including the V6, EcoBoost, GT and Shelby GT350 models.

I wish I could describe how this sway bar helped my car and i really wish I could have gotten it installed. Unfortunately it arrived with missing components needed to actually make this thing work with the car. Missing bushings, brackets, line spacers, almost everything required to install it. On top of that they couldn't send me the missing hardware. I had to RMA the bar and pay for a box to ship it. So I actually ended up losing money because I was send an incomplete item.

Car handles much better than stock on my 17 PP GT. Still think I'll need lowering springs to complete the handling package. Well worth the price, I would recommend for anyone wanting to improve their handling!

The stock sway bar is a joke. This SR Performance bar is twice as big, solid, and top quality. You can feel the difference right away if you’re an aggressive driver. If you drive like you have all day to get from one point to the other, save your money. The stock bar is all you need.

It made a big difference car is tighter and actually going up a steep drive at angle lifted my one wheel off the ground. The bar is extremely stiff hit some turns that I usually slide. The tires were planted

With both from and rear installed on the middle connection the ride is similar to factory on bumpy roads. However, when I back out of my driveway in the morning the chassis is so stiff that the last front wheel teeters off of the ground slightly. It's awesome. Car grips turns really well

Install went smooth, would recommend watching a video first and definitely take off back tires if possible. Handling increase was immediate, I am currently using the middle of the three optional holes and for tackling back roads, it has been perfect. When I go to the track this summer, I plan on stiffening the sway bar more, but as of now, it negates more body roll than I had expected. Cornering speed increases as well and it in general inspires a great deal of confidence in the rear end of the car. Would recommend 10/10, especially when I got it on sale for $160. Very easy and quick way to make a car perform how the driver expects.

Bought the rear for my base GT. Installation too less then 60mins. Detailed instructions are included. Fit and finish is very good. I was missing one brake like bracket, so I opted to reuse my oem ones with a few washers from home depot. Noticeable increase in handling in the rear. Since I'm still on stock front sway bars, There is still body roll up front with a lot of oversteer in high speed cornering. Installing fronts later today. S2000 > STI > EVO > GTR > 2016 GT ...... What's next

I installed the SR rear sway bar this weekend. It is night and day better than the OEM sway bar. It is meatier, stronger, and much more solid. After driving for 2 hours after the install the car handles better, period. I highly recommend this part if you plan to upgrade your S550 suspension.

Related Mustang Categories

Protect your purchase with an extended warranty

Choose your warranty term

12, 24 or 36 Month Extended Limited Warranty

Replace or refund the Cost of the Covered Part

No Deductibles Required

Notification of Enrollment within 24 Hours

Extended Warranty. AmericanMuscle/Turn5 Inc. is proud to offer an optional 12 month extended limited warranty to our customers that purchase an eligible product. The program administrator will replace or refund the cost of the covered part of a period of 12 months after the manufacturers warranty elapses, or from the date of purchase if the manufacturer does not offer a warranty.

Coverage. A Covered Part has failed when it can no longer perform the function for which it was originally designed solely because of its condition and not because of the action or inaction of any non-covered parts. The benefits available under this Limited Warranty are strictly provided to you for the replacement of the Covered Part(s) which fails due to a defect.

Notification Sent Via Email. You will receive notification of your enrollment in the extended product warranty program via email within 24 hours of placing your order. Please save this email for possible future reference.

No Deductibles Required. There are no deductibles required for use of this extended product warranty. If your covered part fails whtin the extended warranty time from, simply call the program administrator at 1-844-870-4881 for instructions before any repairs or replacements have begun. Additional contact details and instructions will be included in your confirmation email.

SR Performance Adjustable Rear Sway Bar (15-19 All)

Recently Viewed

Word on The Street

Being from Canada I was a little unsure about placing a order of the size and amount that I did, but must say the ease of placing the order and tracking the order all the way to my door was a very pleasant experience and I will be dealing with American Muscle in the future. I would also recommend the product and services to anybody thinking of ordering in the future.

Meet Our Team

I didn’t go to automotive school but I’ve always had a passion for fast cars. While I attended Penn State for Information Technology, I started working at a shop so I could gain a bit of automotive education on the side as well. In the past I had only owned front wheel drive vehicles, and am glad ...

Get Your FREE mustang Catalog

We use cookies and similar technology to enhance your experience by recognizing your
repeat visits and preferences, as well as to measure and analyze traffic. To learn more about cookies,
view our privacy policy. By clicking "I Accept" or "X" on this banner,
or using our site, you consent to the use of cookies unless you have disabled them.